R/ironretention.R

In trobinj/trtools: Miscellaneous Tools for Teaching Statistics

#' Iron retention in mice.
#'
#' Data from a randomized experiment on the retention of ferrous (Fe2+) and ferric (Fe3+) iron administered to mice at concentrations of 10.2, 1.2, and 0.3 millimolars. The percent of iron retained was measured. 
#'
#' @format A data frame of 108 observations on three variables:
#' \describe{
#'    \item{retention:}{percent of iron administered that was retained}
#'    \item{concentration:}{concentration of iron administered in millimolars}
#'    \item{ion:}{type of iron (ferrious or ferric)}
#' }
#'
#' @source Rice, J. A. (1998). \emph{Mathematical statistics and data analysis}. Pacific Grove, CA: Wadsworth & Brook/Cole.
#' 
"ironretention"